Patent US3146749A successfully refreshed from Google Patents.
US3146749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of forming a neck on a can part
Assignee: Primerica Inc
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Filing: 1961-06-16
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Granted: 1964-09-01
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Expires: 1981-06-16
Abstract
No abstract record available.
Inventors
- 👤 Heinle Carl William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:49
CPC Classifications
B; B21; B21D; B21D51/00; B21D51/16; B21D51/38
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
A METHOD OF FORMING A NECK ON A CAN PART, COMPRISING THE STEPS OF PRODUCING IN SAID CAN PART AN ANNULAR WALL DEFINING A PARTIALLY FORMED NECK PORTION AND HAVING A LOWER INWARDLY SLOPING SECTION AND AN UPPER GENERALLY UPRIGHT SECTION TERMINATING IN A FREE EDGE PROVIDING A CYLINDRICAL SUPPORT OF A PRECISE DIAMETER WITHIN SAID NECK PORTION AND APPLYING OUTWARD AND ENDWISE PRESSURES ON SAID FREE EDGE OF THE ANNULAR WALL TO FLARE SAID UPRIGHT SECTION OUTWARDLY AND TO CROWD SAID SLOPING WALL SECTION INWARDLY INTO CONFORMING ENGAGEMENT WITH SAID SUPPORT TO PRODUCE AN UPRIGHT NECK HAVING AN OUTWARDLY FLARED UPPER PORTION AND A VERTICAL ANNULAR WALL PORTION WITH A PRECISE INSIDE DIAMETER CORRESPONDING TO THE OUTSIDE DIAMETER OF SAID SUPPORT.
Claim 2
Independent Claim
122 words
A METHOD OF FORMING A NECK ON A CAN PART, COMPRISING THE STEPS OF PRODUCING IN SAID CAN PART AN ANNULAR WALL DEFINING A PARTIALLY FORMED NECK PORTION AND HAVING A LOWER INWARDLY SLOPING SECTION AND AN UPPER GENERALLY UPRIGHT SECTION TERMINATING IN A FREE EDGE PROVIDING A CYLINDRICAL SUPPORT OF A PRECISE DIAMETER WITHIN SAID NECK PORTION AND APPLYING OUTWARD AND ENDWISE PRESSURES ON SAID FREE EDGE OF THE ANNULAR WALL TO FLARE SAID UPRIGHT SECTION OUTWARDLY AND TO CROWD SAID SLOPING WALL SECTION INWARDLY INTO CONFORMING ENGAGEMENT WITH SAID SUPPORT TO PRODUCE AN UPRIGHT NECK HAVING AN OUTWARDLY FLARED UPPER PORTION AND A VERTICAL ANNULAR WALL PORTION WITH A PRECISE INSIDE DIAMETER CORRESPONDING TO THE OUTSIDE DIAMETER OF SAID SUPPORT.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-01 | 1968-03-02 | 1968-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-01 | 1972-03-02 | 1972-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-01 | 1976-03-02 | 1976-09-01 | $7700.00 | Window Closed / Lapsed |